Grease-cup.



J. OOONNOR.

GREASE CUP.

-APPLIOATION FILED SEPT,17, 191a.

Patented July 14, 1914.

2 SHEBTSBHEBT l.

r? naw dot JOHN OCONNO R,

w vtumoeo J, OOUNNOR.

GREASE 0UP.

APPLICATION FILED SEPT.17, 191a.

'lwww'coz JOHN O CONNOR- 2 SHBETSSHEET 2.

Patented July 14, 1914;.

l is,"

P tt 11- ATCHISON, KANSAS.

GIl-EASECUP.

Specification of Littlflltifi.

Let P Patented July 14, 11914.

To all wit-m it may concern Be it known that 1, JOHN OCoNnoiu a citizenof the United States, residing at Atchison, in the county of Atchisonand State or Kansas, have invented certain new and useful improvementsin Grease-Cups. of which the following is a specification, referencebeing had to the accompanying drawings.

. This invention relates to grease-cups, and it more particularlyrelates to the class of grease-cups in which a semi-solid lubricatingmaterial is contained and pressed into contact with the journal orhearing to we lubricated.

One of the objects of this invention is to provide a grease-cup of thischaracter in which the grease may he placed without removing any of theelements or adjuncts of the grease-cup.

Another object, is to provide a grease cup of this character which isabsolutely dust proof and in which all of the parts are so clamped intorigid relation with one another, as to avoid accidental relativemovement thereof, therehy a voiding loss and accident. And anotherobject is to generally improve. simplify and cheapen the construction ofgrease-cups of this character.

In the accon'ipanyin drawings which supplement this specification,Figure 1 illustrates somewhat dialirannnatically a tragmental portion ora locomotive side link or connecting bar provided with one of myin'iproved grease-cups: Fig. 2 is an enlarged side elevation view (itthe grease-cup illustrated in Fig. l Fin. 3 is an enlarged verticalsectional view through the n'reasecup. the inlet opening. being inregistry; Fig". l is a horizontal sectional view on the line -llof Fig.2: Fig. 5 a horizontal sectional view on the line is .3 of Fig. 3; Fig.(3 is a i'rap'nnmtal detail view ol the inner cylinder; Fig.5. 7 is ahorizontal sectional view through a modified form of the device. thesection being" taken on the line T-T oi Fig. Fig. fl is a view similarto Fig. 1 illustrating the modified form; Fig. 9 is a horizontalsectional view taken on the line 9-4) of Fig. 10; Figiji l0 a Viewsimilar to Fin. 2 o l a. modified "term (it the invention; Fig. ll ,is atiaiinental vertical sectional View of thoniodified term.

Referring to' these drawings in which similar reference characterscorrespondwith similar parts throughout the several views.

the bearing member illustrated in Fig. l is formed with an upwardlyextending externally and internally threaded cylinder 16, which isprimarily open at its top, and communicates with the interior of thebearing 15 through the medium of an oil duct 17. 'lhe cylinder 16 isprovided with a lateral opening 16 adjacent to its top portion,.a bridge16 extending over the opening and being exteriorly and interiorly screwthread ed the same as below the opening and atthe lateral sides thereof.In other words, the opening intersects certain of the screw threadswhich extend from the top of the cylinder approximately to the bottomthereof.

fin outer cylinder 18 is internally screw threaded and fitted over theexternal screw threads of the cylinder 16, the bottom of the cylinder 18being; adapted to fit snugly upon a shoulder 16 formed at the base ofthe cylinder 16, while the upper end of the outer cy]inder is formedwith an inwardly extending flange 18 which is adapted to normally restupon the upper end of the cylinder 16. The cylinder 18 is provided withan inlet opening" or aperture 18, which is normally out of registry withthe aperture 16 and is adapted to he brought into registry therewith byrotating the outer cylinder through approximately 120 degrees.

A plunger 19 is provided with a screw threaded head 19' and a screwthreaded shank 19, the free end 19 of said shank being square orrectangular, for proper engagement with'a wrench. The head 19 is inscrew threaded engagement with. the interior surface of the cylinder 16,while a lock nut 20 is in screw threaded engagement with the exteriorsurface of the shank 19.

In operating and filling this grease cup, the lock nut 20 is firstloosened so that the plunger 19 may be moved to its uppermost positionwith the head 19 above the aperturc 16. '.he casing); 18 is now rotatedsufliciently to bring its aperture 18 into registry with the aperture16, and the inner cylinder may now be tilled through these registryapertures. When filled, the outer cylinder is turned into its normalposition, so that the aperture 16 and 18 are out of registry, and it isobvious that if the plunger 19 is the grease and presses it through theduct 17. When a sullicient amount 0t grease has thus been applied thelock nut 20 is tightnow screwed down, its head 19 bears upon err ' head29 ened upon the flange 18", and this increases 'plunger'and between thenut and outer cylinder, so that all of the parts of the grease cup arebound rigidly in place by means of the lock nut 20.

In the modified form illustrated in Figs. 7 to 11 inclusive, the member25 corresponds with the member 15 in Fig. 1, a cylinder 26 being formedthereon and provided with an aperture 27' which communicates with theinterior thereof. This cylinder is interiorly screw threaded from bottomto top and is provided with a closing cap 28 in screw threadedengagement with the inner wall of vthe cylinder 26. The lunger 29 issimilar in all respects to the p unger 28 except that the plunger 29 isof greater diameter. This plunger head is in screw threaded engagementwith the interior wall of the cylinder ,26, while the screw threadedshank thereof is adapted to move freely through the cap or plug 28, andis provided with a lock nut20.

It will be seen thatwhen the plunger is in its uppermost position, theaperture 27 is open, so that lubricating material may be placed in thecylinder through said opening; whereupon the plunger may be screweddown, so as to press the lubricating material through the duct 17.

It is seen that I have provided an oil cup of this character'which fullycapable of attaining the foregoin objects in a thoroughly practical andefiicient manner.

While I have shown and described the pre ferred-form of my invention, itwill be obvious that various changes in the details of construction andin the proportions may be resorted to for successfully carryingmyinvention into practice without sacrificing any of the novel features ordeparting from the scope of the appended. claims,

What I claim is 1. A grease-cup consisting of a cylinder having itsinner wall screw threaded from top to bottom and having a lubricatingduct communicating with the bottom thereof and being provided with alateral opening adja cent to its top, a plunger having a screw threadedhead. and a screw threaded shank, said screw threaded head being engagedwith the internal threads of the cylinder, a screw threaded memberengaged with the upper end of the cylinder, said threaded shankextending through said member, a lock nut in screw threaded engagementwith said shank and normally resting on said member and co-actingtherewith and with the shank for securely closing the upper end of thecylinder.

2. A grease-cup comprising an internally and externally screw threadedinner cylinder, an internally threaded outer cylinder provided with aninwardly extending-flange which is normally seated on the top of thefirst said cylinder, said inner and outer cy-linders being each providedwith an opening near its upper end, said openings being normally out ofregistry and adapted to be moved into registry by rotating the outercylinder on the threads of the inner cylinder, a plunger com )risinga'screw threaded head and a screw t readed shank, said head beingadapted to be disposed on a plane above the openings of the cylindersand to be screwed down throughout the length of the inner cylinder, anda lock nut engaged with the threads of the shank and being normallyseated on the flange of the outer cylinder and co-acting therewith andwith said plunger for closing the end of the inner cylinder and securingthe several elements of the grease cup in fixed position, substantiallyas specified..- p

3. A grease-cup comprising an inner cylinder provided with screw threadson its interior surface and being provided with alat eral opening nearits top, an outer cylinder rotatably mounted on the inner cylinder andprovided with a lateral opening adapted to be ,moved alternatively inand out of registry with the opening of the inner cylinder, a

plunger having screw threaded engagement with the threads of the innercylinder and adapted to be moved alternatively up and down therein, anda lock nut on the plunger and adapted to bear against the outer cylinderfor binding the several elements of the grease cup in fixed relationwith one another, substantially as specified.

In testimony whereof I hereunto alhx my signature 1n the presence of twowitnesses.

FRANK ALDRICH, En. UComvon.

